Construction of Approach Roads Connecting NBW Road to Coal Jetty-II on Either Side in VOCPA

Removal of all underwater concrete blocks/boulders of various weights from the Eastern Breakwater. All the concrete blocks and rubble stones were lifted using a jack-up barge mounted with long-boom excavators/cranes. The removed underwater blocks/boulders were transferred to an additional loading barge with a tug/boat and either stacked or dumped at the designated location within a lead of 4 km. The cost includes jack-up barge, additional barge, tug, tippers, divers, riggers, slings, D-shackles, labour for loading, unloading, weighing, all machinery including fuel, men and materials, clearing the site, and all incidental charges complete. Additionally, the removal of 25 mm diameter vertical bond rods using a core cutter and dumping at the designated location, complete as directed by the departmental officers

Earthwork excavation in trenches for foundations in dense or hard soils, not exceeding 1.50 m in width, including dressing of sides and ramming of bottoms, with lift up to 1.50 m, and including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m and lift of 1.50 m. The cost shall include shuttering, strutting, bailing out seepage water wherever necessary, and all incidental charges, complete, complying with AISS and as directed by the departmental officers.

Dismantling and removal of Reinforcement Cement Concrete (RCC) including stacking of serviceable materials and disposal of unserviceable materials with in a lead of 100m including all labour, tools, equipments, transport, fuel, etc., complete complying with AISS and as directed by the departmental officers.

Providing and laying Plain Cement Concrete 1:4:8 (One part of cement, 4 parts of M. Sand(Crushed Stone Sand) & 8 Parts of 40 mm nominal size metal ) for foundation using 40 mm nominal size graded metal including mixing, laying, levelling, consolidation, finishing and curingetc., complete complying with AISS and as directed by the departmental officers

Formwork: Centering and shuttering including strutting, propping, etc, as per the required line and length at all different elevations level as per the standard specification complete. Form work should be rigid to prevent loss of grout or mortar concrete from concrete at all stages & appropriate to the methods of placing & compacting as per standard specification. It should be made of suitable material i.e., timber, plywood, plastic, Steel depending upon the type of finish specified. The rate shall include cost of equipments, plants, materials, sand, instrumentation, hiring of boat, catamaran, pontoon, labour and survey, fuel etc. complete and as directed by the departmental officers

Setting up the piling gantry and connected equipment over each pile location, including cost of shifting, cost of all materials for piling gantry, labour, setting up the rig to alignment and correct dimensions as shown in the drawing and as directed by the Engineer Incharge.

Providing and fabricating M.S.liners (8mm thick) of required length with M.S. shoes of 1.0 m height using 12mm thick M.S. plates for 1200 mm dia bored vertical pile measured from cut off level of pile to the terminating level including supplying, cutting, rolling, bending, handling and welding cost, labours, materials, accessories, etc., complete as per drawings and specification as directed by Engineer Incharge

Placing the M.S liner (item 2) above for 1200mm dia vertical bored piles. The cost inclusive of charges for transporting to the pile location, aligning, lowering, pitching and driving the liners etc. complete as per standard specification and as directed by Engineer Incharge

Boring through all types of soils, boulders, hard strata and rocks etc. for 1200mm Dia vertical bored piles from the seabed to the founding level (-29meter CD) of the piles, including bailing, chiseling, shifting of materials etc… complete as per directed by the Engineer Incharge

Providing and laying cast-in-situ tremie concrete mix M40 as per standards for 1200 mm Nominal dia vertical bored cast-in-situ reinforced cement concrete piles measured from cut off level of the pile upto founding level excluding cost of reinforcements and M.S liners but including mixing, laying and compacting, consolidating complete as per approved drawings, standard specifications hire charges of concrete pump, trimming pipe, transportation of all men and materials upto worksite and as directed by the Engineer in charge. (cement content should be used above 400 kg)